In order to raise founds,
Parthenius sent letters to a Greek bishop in theTsardom of Russia, at the time a political enemy of theOttoman Empire. His correspondence was intercepted and delivered to theGrand VizierMehmed Köprülü, who decided that Parthenius should stand for
trial charged of treason.[3]Though the accusations were proven false, SultanMehmed IV ordered his hanging in order to "set an example for those who may
try that in future".[4]The only option he was given to be freed was to
convert toIslam, but Parthenius refused.[3]

Thus on 24 March 1657 a long
procession walked with Parthenius from his prison to a place in Istanbul named
"Gate of the Hook" (Parmak Kapi) where he was hanged. He
stayed hanged for three days and then was thrown into the sea. His body was
found by Christians and was buried in the Kamariotissa Monastery on the island
ofChalki.[6]